Publication detail

Conversion of silica by-product into zeolites by thermo-sonochemical treatment

VAIČIUKYNIENĖ, D. JAKEVIČIUS, L. KANTAUTAS, A. VAITKEVIČIUS, V. VAIČIUKYNAS, V. DVOŘÁK, K.

Original Title

Conversion of silica by-product into zeolites by thermo-sonochemical treatment

Type

journal article in Web of Science

Language

English

Original Abstract

The fine powdered silica by-product of processing of aluminum fluoride (fertilizer plant, Lithuania) was used for zeolite synthesis as silica and aluminum source. The effect of sonication time and the time of hydrothermal synthesis on crystallinity of the synthesized zeolite were studied. This allowed the transformation of the byproduct to the mixture of Na–P zeolite and Na–X zeolite. It was determined that ultrasonic-assisted hydrothermal action effected the “diamond” shape formation of Na–P zeolite with clear crystal edges. Na–P zeolite had the morphology of pseudo-spherical forms constituted by small plates when hydrothermal treatment (without sonication) was use for the preparation of zeolites. Moreover, it was determined that ultrasonic-assisted hydrothermal method effected a reduction in the crystal size compared with the zeolites which were synthesized only by using hydrothermal synthesis. The total amount of zeolites as high as 88–93% was achieved after 24 h of hydrothermal treatment followed or unfollowed by sonication. By using longer duration (20 min) of ultrasound pretreatment it is possible to reduce the duration of hydrothermal synthesis: from 24 h to 12 h of hydrothermal treatment. In this case, similar results of total amount of zeolites were detected. In the present work, low-cost raw materials, such as silica by-product have been investigated for the production of zeolites.

Keywords

Silica; Thermo-sonochemical treatment; Zeolites;

Authors

VAIČIUKYNIENĖ, D.; JAKEVIČIUS, L.; KANTAUTAS, A.; VAITKEVIČIUS, V.; VAIČIUKYNAS, V.; DVOŘÁK, K.

Released

13. 4. 2021

Publisher

Elsevier

Location

Nizozemí

ISBN

1350-4177

Periodical

ULTRASONICS SONOCHEMISTRY

Year of study

72

Number

4

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S1350417720317302

Full text in the Digital Library

http://hdl.handle.net/11012/196696

BibTex

@article{BUT167473,
  author="Danute {Vaičiukynienė} and Leonas {Jakevičius} and Aras {Kantautas} and Vitoldas {Vaitkevičius} and Vilimantas {Vaičiukynas} and Karel {Dvořák}",
  title="Conversion of silica by-product into zeolites by thermo-sonochemical treatment",
  journal="ULTRASONICS SONOCHEMISTRY",
  year="2021",
  volume="72",
  number="4",
  pages="1--8",
  doi="10.1016/j.ultsonch.2020.105426",
  issn="1350-4177",
  url="https://www.sciencedirect.com/science/article/pii/S1350417720317302"
}